Answer:
There are several types of bacterial culture methods that are selected based on the agent being cultured and the downstream use.
• Broth cultures.
• Agar plates.
• Agar based dipsticks.
• Stab cultures.
• Culture collections.
•Solid plate culture of thermophilic microorganisms.
• Isolation of pure cultures.
A buildup of pesticides could get into an animal. That animal will be killed by a hunter. The hunter eats the animal with the pesticide. The hunter then becomes sick. This is just an example but you can see what i'm getting at.
Everywhere , but an example is: rain rusting an old car